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                        Introduction
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                            <b>1.</b>
                        
                        html介绍
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                            <b>1.1.</b>
                        
                        html常用标签
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                            <b>1.2.</b>
                        
                        a标签的使用
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                            <b>1.3.</b>
                        
                        表格的介绍
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                            <b>1.4.</b>
                        
                        列表
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                            <b>1.5.</b>
                        
                        iframe内嵌框架
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                            <b>1.6.</b>
                        
                        表单
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                            <b>1.7.</b>
                        
                        媒体标签
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                            <b>1.8.</b>
                        
                        清除样式
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                            <b>2.</b>
                        
                        css引入方式
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                            <b>2.1.</b>
                        
                        css选择符与选择器
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                            <b>2.2.</b>
                        
                        css字体样式
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                            <b>2.3.</b>
                        
                        图片的调整
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                            <b>2.4.</b>
                        
                        伪类选择
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                            <b>2.5.</b>
                        
                        盒子模型
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                            <b>2.6.</b>
                        
                        浮动
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                            <b>2.7.</b>
                        
                        定位
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                            <b>2.8.</b>
                        
                        阴影
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                            <b>2.9.</b>
                        
                        图片溢出处理
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                            <b>2.10.</b>
                        
                        动画
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                            <b>2.11.</b>
                        
                        动画插件
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                            <b>2.12.</b>
                        
                        旋转菜单
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                            <b>2.13.</b>
                        
                        移动端
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                            <b>2.14.</b>
                        
                        rem布局
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                            <b>2.15.</b>
                        
                        权重问题
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                            <b>2.16.</b>
                        
                        移动端导航问题
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                            <b>2.17.</b>
                        
                        flex布局
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                            <b>2.18.</b>
                        
                        fullpage
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        <li class="chapter " data-level="2.19" data-path="md/css/bootstrap.html">
            
                
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                            <b>2.19.</b>
                        
                        bootstrap
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        <li class="chapter " data-level="2.20" data-path="md/css/媒体查询.html">
            
                
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                            <b>2.20.</b>
                        
                        媒体查询
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        <li class="chapter " data-level="3" data-path="md/js/js的介绍.html">
            
                
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                            <b>3.</b>
                        
                        JavaScript的介绍
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                            <b>3.1.</b>
                        
                        JavaScript数据类型
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        <li class="chapter " data-level="3.2" data-path="md/js/数据类型的转换.html">
            
                
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                            <b>3.2.</b>
                        
                        数据类型的转换
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                            <b>3.3.</b>
                        
                        运算符
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                            <b>3.4.</b>
                        
                        比较运算符
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        <li class="chapter " data-level="3.5" data-path="md/js/赋值运算符.html">
            
                
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                            <b>3.5.</b>
                        
                        赋值运算符
                    </a>
            
            
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        <li class="chapter " data-level="3.6" data-path="md/js/逻辑操作符.html">
            
                
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                            <b>3.6.</b>
                        
                        逻辑操作符
                    </a>
            
            
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        <li class="chapter " data-level="3.7" data-path="md/js/条件语句.html">
            
                
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                            <b>3.7.</b>
                        
                        条件语句
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.8" data-path="md/js/条件运算符.html">
            
                
                    <a href="../../md/js/条件运算符.html">
                
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                            <b>3.8.</b>
                        
                        条件运算符
                    </a>
            
            
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        <li class="chapter " data-level="3.9" data-path="md/js/位运算符.html">
            
                
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                            <b>3.9.</b>
                        
                        位运算符
                    </a>
            
            
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        <li class="chapter " data-level="3.10" data-path="md/js/循环语句.html">
            
                
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                            <b>3.10.</b>
                        
                        循环语句
                    </a>
            
            
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        <li class="chapter " data-level="3.11" data-path="md/js/for循环.html">
            
                
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                            <b>3.11.</b>
                        
                        for循环
                    </a>
            
            
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        <li class="chapter " data-level="3.12" data-path="md/js/ES6.html">
            
                
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                            <b>3.12.</b>
                        
                        ES6
                    </a>
            
            
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        <li class="chapter " data-level="3.13" data-path="md/js/内置对象.html">
            
                
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                            <b>3.13.</b>
                        
                        内置对象
                    </a>
            
            
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        <li class="chapter " data-level="3.14" data-path="md/js/Array对象.html">
            
                
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                            <b>3.14.</b>
                        
                        Array对象
                    </a>
            
            
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        <li class="chapter " data-level="3.15" data-path="md/js/Date对象.html">
            
                
                    <a href="../../md/js/Date对象.html">
                
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                            <b>3.15.</b>
                        
                        Date对象
                    </a>
            
            
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        <li class="chapter " data-level="3.16" data-path="md/js/布尔值对象.html">
            
                
                    <a href="../../md/js/布尔值对象.html">
                
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                            <b>3.16.</b>
                        
                        布尔值对象
                    </a>
            
            
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        <li class="chapter " data-level="3.17" data-path="md/js/数学对象.html">
            
                
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                            <b>3.17.</b>
                        
                        数学对象
                    </a>
            
            
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        <li class="chapter " data-level="3.18" data-path="md/js/对象的创建.html">
            
                
                    <a href="../../md/js/对象的创建.html">
                
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                            <b>3.18.</b>
                        
                        对象的创建
                    </a>
            
            
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        <li class="chapter " data-level="3.19" data-path="md/js/BOM.html">
            
                
                    <a href="../../md/js/BOM.html">
                
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                            <b>3.19.</b>
                        
                        BOM
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.20" data-path="md/js/DOM关于元素的获取.html">
            
                
                    <a href="../../md/js/DOM关于元素的获取.html">
                
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                            <b>3.20.</b>
                        
                        DOM关于元素的获取
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.21" data-path="md/js/DOM元素对象.html">
            
                
                    <a href="../../md/js/DOM元素对象.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.21.</b>
                        
                        DOM元素对象
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.22" data-path="md/js/DOM事件练习.html">
            
                
                    <a href="../../md/js/DOM事件练习.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.22.</b>
                        
                        DOM事件练习
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.23" data-path="md/js/DOM鼠标事件.html">
            
                
                    <a href="../../md/js/DOM鼠标事件.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.23.</b>
                        
                        DOM鼠标事件
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.24" data-path="md/js/事件代理.html">
            
                
                    <a href="../../md/js/事件代理.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.24.</b>
                        
                        事件代理
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.25" data-path="md/js/移动端事件.html">
            
                
                    <a href="../../md/js/移动端事件.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.25.</b>
                        
                        移动端事件
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.26" data-path="md/js/无缝轮播图.html">
            
                
                    <a href="../../md/js/无缝轮播图.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.26.</b>
                        
                        无缝轮播图
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.27" data-path="md/js/鼠标事件练习.html">
            
                
                    <a href="../../md/js/鼠标事件练习.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.27.</b>
                        
                        鼠标事件练习
                    </a>
            
            
        </li>
    
        <li class="chapter active" data-level="3.28" data-path="md/js/ajax.html">
            
                
                    <a href="../../md/js/ajax.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.28.</b>
                        
                        ajax
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.29" data-path="md/js/高德地图的使用.html">
            
                
                    <a href="../../md/js/高德地图的使用.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.29.</b>
                        
                        高德地图的使用
                    </a>
            
            
        </li>
    
        <li class="chapter " data-level="3.30" data-path="md/js/预加载插件使用.html">
            
                
                    <a href="../../md/js/预加载插件使用.html">
                
                        <i class="fa fa-check"></i>
                        
                            <b>3.30.</b>
                        
                        预加载插件使用
                    </a>
            
            
        </li>
    

            </ul>
            
        </li>
    
        <li class="chapter " data-level="4" data-path="md/jQuery/JQ变量的声明.html">
            
                
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                            <b>4.</b>
                        
                        JQ变量的声明
                    </a>
            
            
            <ul class="articles">
                
    
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                        <pre><code>        &lt;form action=&quot;&quot; method=&quot;post&quot;&gt;
            &lt;input type=&quot;text&quot; name=&quot;&quot; id=&quot;&quot; value=&quot;&quot; /&gt;
            &lt;input type=&quot;submit&quot; value=&quot;&#x63D0;&#x4EA4;&quot; /&gt;
        &lt;/form&gt;
        &lt;ul class=&quot;menu&quot;&gt;
            &lt;li&gt;&lt;span&gt;&#x6392;&#x540D;&lt;/span&gt;&lt;span&gt;&#x59D3;&#x540D;&lt;/span&gt;&lt;span&gt;&#x5206;&#x6570;&lt;/span&gt;&lt;/li&gt;
        &lt;/ul&gt;
</code></pre><h1 id="ajax&#xFF1A;&#x5168;&#x79F0;asynchronous-javascript-and-xml">ajax&#xFF1A;&#x5168;&#x79F0;(Asynchronous JavaScript And XML)</h1>
<p>ajax&#x7528;&#x4E8E;&#x6570;&#x636E;&#x53D1;&#x9001;&#x8BF7;&#x6C42;&#xFF0C;&#x83B7;&#x53D6;&#x6570;&#x636E;</p>
<p>&#x4E0E;&#x9875;&#x9762;&#x7684;&#x5237;&#x65B0;&#x65E0;&#x5173;&#xFF0C;&#x53EA;&#x4F1A;&#x8FDB;&#x884C;&#x5C40;&#x90E8;&#x7684;&#x5237;&#x65B0;</p>
<p>&#x600E;&#x4E48;&#x8FDB;&#x884C;ajax&#x7684;&#x6570;&#x636E;&#x8BF7;&#x6C42;</p>
<p>1&#x3001;&#x901A;&#x8FC7;new&#x5173;&#x952E;&#x8BCD;&#x6765;&#x5B9E;&#x4F8B;&#x5316;&#x4E00;&#x4E2A;xmlhttprequest&#x5BF9;&#x8C61;</p>
<p>2&#x3001;&#x8BBE;&#x7F6E;&#x4E00;&#x4E2A;&#x8BF7;&#x6C42;&#x65B9;&#x5F0F;&#x548C;&#x5730;&#x5740;</p>
<p>open(type,url,async)</p>
<p>type:&#x8BF7;&#x6C42;&#x65B9;&#x5F0F;(get&#xFF0C;post)</p>
<p>url:&#x8BF7;&#x6C42;&#x7684;&#x5730;&#x5740;</p>
<p>async:&#x662F;&#x5426;&#x5F02;&#x6B65;&#x8BF7;&#x6C42;(true&#xFF0C;&#x5F02;&#x6B65;&#xFF0C;false&#xFF1A;&#x540C;&#x6B65;)</p>
<p>&#x53EF;&#x9009;&#xFF0C;&#x9ED8;&#x8BA4;&#x503C;&#x4E3A;true</p>
<p>3&#x3001;&#x53D1;&#x9001;&#x8BF7;&#x6C42;&#xFF0C;send()&#xFF0C;</p>
<p>4&#x3001;&#x76D1;&#x542C;&#x8BF7;&#x6C42;&#x8FC7;&#x7A0B;&#xFF0C;&#x7136;&#x540E;&#x518D;&#x83B7;&#x53D6;&#x7ED3;&#x679C;</p>
<p>&#x8BF7;&#x6C42;&#x6570;&#x636E;&#x65F6;&#xFF0C;&#x5F53;&#x9700;&#x8981;&#x4F20;&#x9012;&#x53C2;&#x6570;&#xFF0C;post&#x8BF7;&#x6C42;&#x4E2D;&#x53EF;&#x5C06;&#x53C2;&#x6570;&#x8BBE;&#x7F6E;&#x5728;send()&#x4E2D;</p>
<p>get&#x8BF7;&#x6C42;&#x53EF;&#x4EE5;&#x62FC;&#x63A5;&#x5728;open&#x7684;url&#x5730;&#x5740;&#x4E0A;</p>
<p>readyState&#xFF1A;&#x8868;&#x793A;&#x53D1;&#x9001;&#x8BF7;&#x6C42;&#x8FC7;&#x7A0B;&#x4E2D;&#x7684;&#x72B6;&#x6001;&#xFF0C;&#x6709;&#x56DB;&#x4E2A;&#x503C;</p>
<p>0&#x3001;&#x8BF7;&#x6C42;&#x672A;&#x521D;&#x59CB;&#x5316;</p>
<p>1&#x3001;&#x670D;&#x52A1;&#x5668;&#x8FDE;&#x63A5;&#x5DF2;&#x5EFA;&#x7ACB;</p>
<p>2&#x3001;&#x8BF7;&#x6C42;&#x63A5;&#x6536;</p>
<p>3&#x3001;&#x8BF7;&#x6C42;&#x5904;&#x7406;&#x4E2D;</p>
<p>4&#x3001;&#x8BF7;&#x6C42;&#x5B8C;&#x6210;&#xFF0C;&#x53D1;&#x9001;&#x6210;&#x529F;</p>
<p>status&#xFF1A;HTTP&#x72B6;&#x6001;&#x7801;</p>
<p>200&#xFF1A;&#x8BF7;&#x6C42;&#x6210;&#x529F;&#xFF0C;&#x670D;&#x52A1;&#x5668;&#x6210;&#x529F;&#x5904;&#x7406;&#x4E86;&#x8BF7;&#x6C42;</p>
<p>300&#xFF1A;&#x8BF7;&#x6C42;&#x6CA1;&#x6709;&#x6210;&#x529F;</p>
<p>304&#xFF1A;&#x8868;&#x793A;&#x8BF7;&#x6C42;&#x7684;&#x6570;&#x636E;&#x6CA1;&#x6709;&#x66F4;&#x65B0;</p>
<p>404&#xFF1A;&#x6CA1;&#x6709;&#x627E;&#x5230;&#x8BF7;&#x6C42;&#x7684;&#x6587;&#x4EF6;</p>
<p>500&#xFF1A;&#x670D;&#x52A1;&#x5668;&#x9519;&#x8BEF;</p>
<p> ajax&#x7684;&#x7F3A;&#x70B9;</p>
<p>1&#x3001;ajax&#x5E72;&#x6389;&#x4E86;&#x6D4F;&#x89C8;&#x5668;&#x7684;&#x56DE;&#x9000;&#x6309;&#x94AE;</p>
<p>2&#x3001;&#x5B89;&#x5168;&#x95EE;&#x9898;</p>
<pre><code>
            var xhr = new XMLHttpRequest(); //readyState&#xFF1A;1
            xhr.open(&quot;GET&quot;, &quot;js/index.json&quot;); //readyState&#xFF1A;2
            xhr.send(null); //readyState&#xFF1A;4
            xhr.addEventListener(&quot;readystatechange&quot;, function() {
                if(xhr.readyState == 4) {
                    if(xhr.status == 200) {
                        console.log(xhr);
                        //JSON.parse()&#x5C06;&#x5B57;&#x7B26;&#x4E32;&#x8F6C;&#x6362;&#x4E3A;&#x5BF9;&#x8C61;
                        var res =JSON.parse(xhr.responseText);
                        //JSON.stringify()&#x5C06;&#x5BF9;&#x8C61;&#x8F6C;&#x6362;&#x4E3A;&#x5B57;&#x7B26;&#x4E32;
                    //     res = JSON.stringify(res);
                    //    paihangbang(res);
                    } else {
                        console.log(&quot;&#x8BF7;&#x6C42;&#x5931;&#x8D25;&quot;);

                    }
                }
            })
            var ul = document.querySelector(&quot;.menu&quot;);
//            function paihangbang(res){
//                for (var i=0;i&lt;res.length;i++) {
//                    var li = &quot;&lt;li&gt;&lt;span&gt;&#x6392;&#x540D;&lt;/span&gt;&lt;span&gt;&quot;+res[i].name+&quot;&lt;/span&gt;&lt;span&gt;&quot;+res[i].num+&quot;&lt;/span&gt;&lt;/li&gt;&quot;;
//                    ul.innerHTML+=li;
//                }
//            }
</code></pre><p>&#x8BF7;&#x6C42;&#x5730;&#x5740;&#x4E00;</p>
<p> &#x8BF7;&#x6C42;&#x4E0B;&#x9762;&#x7684;&#x6570;&#x636E;&#xFF0C;&#x5217;&#x8868;&#x7684;&#x5F62;&#x5F0F;&#x8F93;&#x51FA;&#x5230;&#x9875;&#x9762;</p>
<p> <a href="http://120.76.31.111/app/XhlGetSubjectTypeList" target="_blank">http://120.76.31.111/app/XhlGetSubjectTypeList</a></p>
<p>&#x8BF7;&#x6C42;&#x5730;&#x5740;&#x4E8C;</p>
<p>&#x70B9;&#x51FB;&#x7B2C;&#x4E00;&#x5217;&#x8868;&#x540D;&#x79F0;&#x65F6;&#x6839;&#x636E;&#x4E0A;&#x9762;&#x5217;&#x8868;&#x7684;id&#x67E5;&#x8BE2;&#x7B2C;&#x4E8C;&#x4E2A;&#x6570;&#x636E;&#x5217;&#x8868;&#xFF0C;&#x89E3;&#x6790;&#x5E76;&#x904D;&#x5386;&#x8F93;&#x51FA;</p>
<p> <a href="http://120.76.31.111/app/gettypeexercisesubject?typeId=1" target="_blank">http://120.76.31.111/app/gettypeexercisesubject?typeId=1</a></p>
<pre><code>            var str = new XMLHttpRequest();
                str.open(&quot;GET&quot;,&quot;http://120.76.31.111/app/XhlGetSubjectTypeList&quot;);
                str.send();
            str.addEventListener(&quot;readystatechange&quot;,function(){
                if(str.readyState == 4){
                    if(str.status==200){
                        var str1 = JSON.parse(str.responseText);
                        arr(str1);
                    }else{
                        console.log(&quot;&#x8BF7;&#x6C42;&#x5931;&#x8D25;&quot;);
                    }
                }
            })
            function arr(str1){
                for (var i=0;i&lt;str1.length;i++) {
                    var li = &quot;&lt;li&gt;&lt;span&gt;id&lt;/span&gt;&lt;span&gt;&quot;+str1[i].Id+&quot;&lt;/span&gt;&lt;span&gt;&quot;+str1[i].Name+&quot;&lt;/span&gt;&lt;/li&gt;&quot;;
                    ul.innerHTML+=li;
                }
            }
</code></pre><pre><code>        &lt;form action=&quot;&quot; method=&quot;get&quot;&gt;
            &lt;input type=&quot;text&quot; name=&quot;_name&quot; id=&quot;&quot; value=&quot;123&quot; /&gt;
            &lt;input type=&quot;submit&quot; value=&quot;&#x63D0;&#x4EA4;&quot;/&gt;
        &lt;/form&gt;
        &lt;ul class=&quot;menu&quot;&gt;
            &lt;li&gt;&#x804C;&#x79F0;&lt;/li&gt;
        &lt;/ul&gt;
</code></pre><pre><code>            var ul = document.querySelector(&quot;.menu&quot;);
            var baseurl = &quot;http://120.76.31.111/app/XhlGetSubjectTypeList&quot;;
            var xhr = new XMLHttpRequest();//&#x521B;&#x5EFA;http&#x8BF7;&#x6C42;
            xhr.open(&quot;GET&quot;,baseurl);//&#x8BBE;&#x7F6E;&#x8BF7;&#x6C42;&#x5730;&#x5740;&#x548C;&#x65B9;&#x5F0F;
            xhr.send();//&#x53D1;&#x9001;&#x8BF7;&#x6C42;
            //&#x76D1;&#x542C;&#x8FC7;&#x7A0B;
            xhr.addEventListener(&quot;readystatechange&quot;,function(){
                if(xhr.readyState==4){
                    if(xhr.status==200){
                        var res = JSON.parse(xhr.responseText);
                        getData(res);

                    }
                }
            })
            //data-&#x81EA;&#x5B9A;&#x4E49;&#x5143;&#x7D20;&#x5C5E;&#x6027;&#xFF0C;data-&#x662F;&#x56FA;&#x5B9A;&#x683C;&#x5F0F;&#xFF0C;data-&#x540E;&#x9762;&#x63A5;&#x4E0A;&#x81EA;&#x5B9A;&#x4E49;&#x5C5E;&#x6027;&#x540D;
            function getData(res){
                for (var i=0;i&lt;res.length;i++) {
                    var li =&quot;&lt;li class=&apos;list&apos; data-id=&quot;+res[i].Id+&quot;&gt;&quot;+res[i].Name+&quot;&lt;/li&gt;&quot;;
                    ul.innerHTML += li;
                }
                //getid();
            }
            /*function getData(res){
                for (var i=0;i&lt;res.length;i++) {
                    var li =&quot;&lt;li class=&apos;list&apos;&gt;&lt;span&gt;&quot;+res[i].Name+&quot;&lt;/span&gt;&lt;span&gt;&quot;+res[i].Id+&quot;&lt;/span&gt;&lt;/li&gt;&quot;;
                    ul.innerHTML += li;
                }
                //getid();
            }*/

            //&#x8BF7;&#x6C42;&#x7B2C;&#x4E8C;&#x4E2A;&#x5730;&#x5740;
            function getd(typeid){
                var baseurl =&quot;http://120.76.31.111/app/gettypeexercisesubject?typeId=&quot;;
                var xhr = new XMLHttpRequest();
                //var typeid = &quot;55&quot;;
                xhr.open(&quot;GET&quot;,baseurl+typeid);
                xhr.send();
                xhr.addEventListener(&quot;readystatechange&quot;,function(){
                    if(xhr.readyState==4){
                        if(xhr.status==200){
                            var res = JSON.parse(xhr.responseText);
                            console.log(res);
                        }
                    }
                })
            }
            //&#x65B9;&#x6CD5;&#x4E00;
            /*function getid(){
                var ali = ul.querySelectorAll(&quot;li&quot;);
                for (var i=0;i&lt;ali.length;i++) {
                    ali[i].addEventListener(&quot;click&quot;,function(){
                        var id = this.children[1].innerText;
                        console.log(id);
                        getd(id);
                    })
                }
            }*/

            //&#x65B9;&#x6CD5;&#x4E8C;
            //&#x4E8B;&#x4EF6;&#x4EE3;&#x7406;
            /*ul.addEventListener(&quot;click&quot;,function(e){
                    var id = e.target.innerText;
                getd(id);
            })*/
            ul.addEventListener(&quot;click&quot;,function(e){
                    var id = e.target.getAttribute(&quot;data-id&quot;);
                getd(id);
            })
</code></pre>
                    
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